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<h1 class="title">testwidget.cpp 示例文件</h1>
<span class="subtitle">widgets/elidedlabel/testwidget.cpp</span>
<!-- $$$widgets/elidedlabel/testwidget.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">

  <span class="comment">/****************************************************************************
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  ** This file is part of the QtCore module of the Qt Toolkit.
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  <span class="preprocessor">#include &quot;testwidget.h&quot;</span>
  <span class="preprocessor">#include &quot;elidedlabel.h&quot;</span>

  <span class="preprocessor">#include &lt;QtWidgets/QLabel&gt;</span>
  <span class="preprocessor">#include &lt;QtWidgets/QPushButton&gt;</span>
  <span class="preprocessor">#include &lt;QtWidgets/QSizePolicy&gt;</span>
  <span class="preprocessor">#include &lt;QtWidgets/QGridLayout&gt;</span>

  TestWidget<span class="operator">::</span>TestWidget(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent):
      <span class="type"><a href="qwidget.html">QWidget</a></span>(parent)
  {
      <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> romeo <span class="operator">=</span> tr(
          <span class="string">&quot;But soft, what light through yonder window breaks? / &quot;</span>
          <span class="string">&quot;It is the east, and Juliet is the sun. / &quot;</span>
          <span class="string">&quot;Arise, fair sun, and kill the envious moon, / &quot;</span>
          <span class="string">&quot;Who is already sick and pale with grief / &quot;</span>
          <span class="string">&quot;That thou, her maid, art far more fair than she.&quot;</span>
      );

      <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> macbeth <span class="operator">=</span> tr(
          <span class="string">&quot;To-morrow, and to-morrow, and to-morrow, / &quot;</span>
          <span class="string">&quot;Creeps in this petty pace from day to day, / &quot;</span>
          <span class="string">&quot;To the last syllable of recorded time; / &quot;</span>
          <span class="string">&quot;And all our yesterdays have lighted fools / &quot;</span>
          <span class="string">&quot;The way to dusty death. Out, out, brief candle! / &quot;</span>
          <span class="string">&quot;Life's but a walking shadow, a poor player, / &quot;</span>
          <span class="string">&quot;That struts and frets his hour upon the stage, / &quot;</span>
          <span class="string">&quot;And then is heard no more. It is a tale / &quot;</span>
          <span class="string">&quot;Told by an idiot, full of sound and fury, / &quot;</span>
          <span class="string">&quot;Signifying nothing.&quot;</span>
      );

      <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> harry <span class="operator">=</span> tr(<span class="string">&quot;Feeling lucky, punk?&quot;</span>);

      textSamples <span class="operator">&lt;</span><span class="operator">&lt;</span> romeo <span class="operator">&lt;</span><span class="operator">&lt;</span> macbeth <span class="operator">&lt;</span><span class="operator">&lt;</span> harry;

      sampleIndex <span class="operator">=</span> <span class="number">0</span>;
      elidedText <span class="operator">=</span> <span class="keyword">new</span> ElidedLabel(textSamples<span class="operator">[</span>sampleIndex<span class="operator">]</span><span class="operator">,</span> <span class="keyword">this</span>);
      elidedText<span class="operator">-</span><span class="operator">&gt;</span>setFrameStyle(<span class="type"><a href="qframe.html">QFrame</a></span><span class="operator">::</span>Box);

      <span class="type"><a href="qpushbutton.html">QPushButton</a></span> <span class="operator">*</span>switchButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpushbutton.html">QPushButton</a></span>(tr(<span class="string">&quot;Switch text&quot;</span>));
      connect(switchButton<span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="qpushbutton.html">QPushButton</a></span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&amp;</span>TestWidget<span class="operator">::</span>switchText);

      <span class="type"><a href="qpushbutton.html">QPushButton</a></span> <span class="operator">*</span>exitButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpushbutton.html">QPushButton</a></span>(tr(<span class="string">&quot;Exit&quot;</span>));
      connect(exitButton<span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="qpushbutton.html">QPushButton</a></span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&amp;</span>TestWidget<span class="operator">::</span>close);

      <span class="type"><a href="qlabel.html">QLabel</a></span> <span class="operator">*</span>label <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">&quot;Elided&quot;</span>));
      label<span class="operator">-</span><span class="operator">&gt;</span>setVisible(elidedText<span class="operator">-</span><span class="operator">&gt;</span>isElided());
      connect(elidedText<span class="operator">,</span> <span class="operator">&amp;</span>ElidedLabel<span class="operator">::</span>elisionChanged<span class="operator">,</span> label<span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="qlabel.html">QLabel</a></span><span class="operator">::</span>setVisible);

      widthSlider <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qslider.html">QSlider</a></span>(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Horizontal);
      widthSlider<span class="operator">-</span><span class="operator">&gt;</span>setMinimum(<span class="number">0</span>);
      connect(widthSlider<span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="qslider.html">QSlider</a></span><span class="operator">::</span>valueChanged<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&amp;</span>TestWidget<span class="operator">::</span>onWidthChanged);

      heightSlider <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qslider.html">QSlider</a></span>(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Vertical);
      heightSlider<span class="operator">-</span><span class="operator">&gt;</span>setInvertedAppearance(<span class="keyword">true</span>);
      heightSlider<span class="operator">-</span><span class="operator">&gt;</span>setMinimum(<span class="number">0</span>);
      connect(heightSlider<span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="qslider.html">QSlider</a></span><span class="operator">::</span>valueChanged<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&amp;</span>TestWidget<span class="operator">::</span>onHeightChanged);

      <span class="type"><a href="qgridlayout.html">QGridLayout</a></span> <span class="operator">*</span>layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>();
      layout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(label<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AlignCenter);
      layout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(switchButton<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">2</span>);
      layout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(exitButton<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">3</span>);
      layout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(widthSlider<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">3</span>);
      layout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(heightSlider<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">0</span>);
      layout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(elidedText<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AlignTop <span class="operator">|</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AlignLeft);

      setLayout(layout);
  }

  <span class="type">void</span> TestWidget<span class="operator">::</span>resizeEvent(<span class="type"><a href="../qtgui/qresizeevent.html">QResizeEvent</a></span> <span class="operator">*</span>event)
  {
      Q_UNUSED(event)

      <span class="type">int</span> maxWidth <span class="operator">=</span> widthSlider<span class="operator">-</span><span class="operator">&gt;</span>width();
      widthSlider<span class="operator">-</span><span class="operator">&gt;</span>setMaximum(maxWidth);
      widthSlider<span class="operator">-</span><span class="operator">&gt;</span>setValue(maxWidth <span class="operator">/</span> <span class="number">2</span>);

      <span class="type">int</span> maxHeight <span class="operator">=</span> heightSlider<span class="operator">-</span><span class="operator">&gt;</span>height();
      heightSlider<span class="operator">-</span><span class="operator">&gt;</span>setMaximum(maxHeight);
      heightSlider<span class="operator">-</span><span class="operator">&gt;</span>setValue(maxHeight <span class="operator">/</span> <span class="number">2</span>);

      elidedText<span class="operator">-</span><span class="operator">&gt;</span>setFixedSize(widthSlider<span class="operator">-</span><span class="operator">&gt;</span>value()<span class="operator">,</span> heightSlider<span class="operator">-</span><span class="operator">&gt;</span>value());
  }

  <span class="type">void</span> TestWidget<span class="operator">::</span>switchText()
  {
      sampleIndex <span class="operator">=</span> (sampleIndex <span class="operator">+</span> <span class="number">1</span>) <span class="operator">%</span> textSamples<span class="operator">.</span>size();
      elidedText<span class="operator">-</span><span class="operator">&gt;</span>setText(textSamples<span class="operator">.</span>at(sampleIndex));
  }

  <span class="type">void</span> TestWidget<span class="operator">::</span>onWidthChanged(<span class="type">int</span> width)
  {
      elidedText<span class="operator">-</span><span class="operator">&gt;</span>setFixedWidth(width);
  }

  <span class="type">void</span> TestWidget<span class="operator">::</span>onHeightChanged(<span class="type">int</span> height)
  {
      elidedText<span class="operator">-</span><span class="operator">&gt;</span>setFixedHeight(height);
  }

</pre>
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<!-- @@@widgets/elidedlabel/testwidget.cpp -->
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